// 
// Test.cs
//  
// Author:
//       Mikayla Hutchinson <m.j.hutchinson@gmail.com>
// 
// Copyright (c) 2009 Novell, Inc. (http://www.novell.com)
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

using System;
using System.IO;

namespace Mono.TextTemplating.Tests
{
	public static class TemplatingEngineHelper
	{
		/// <summary>
		/// Cleans CodeDOM generated code so that Windows/Mac and Mono/.NET output can be compared.
		/// </summary>
		public static string CleanCodeDom (string input, string newLine)
		{
			using (var writer = new StringWriter ()) {
				using (var reader = new StringReader (input)) {

					bool afterLineDirective = true;
					bool stripHeader = true;

					string line;
					while ((line = reader.ReadLine ()) != null) {

						if (stripHeader) {
							if (line.StartsWith ("//", StringComparison.Ordinal) || StringUtil.IsNullOrWhiteSpace (line))
								continue;
							stripHeader = false;
						}

						if (afterLineDirective) {
							if (StringUtil.IsNullOrWhiteSpace (line))
								continue;
							afterLineDirective = false;
						}

						if (line.Contains ("#line")) {
							afterLineDirective = true;
						}

						writer.Write (line);
						writer.Write (newLine);
					}
				}
				return writer.ToString ();
			}
		}
	}
}
